Before this commit, it was not possible to create events with defined attendee state. The default value was always set. This was a limitation when the events were part of a recurrence and all events attendee needed to be created with a known state. To reproduce, one would create a recurrent event, sync it with Google and in Google, 'decline' this event and the following. The attendee state was not properly set. closes odoo/odoo#68700 Taskid: 2484335 Related: odoo/upgrade#2537 Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>